Winding apparatus for paper, cloth, or the like.



F. ZWINZ. WINDING APPARATUS FOR PAPER, CLOTH, OR THE LIKE.

APPLIOATION FILED AUG. 6, 1910. 1,01 3,91 7-.

COLUMBIA. FLANOGRAPH C0" WASHINGTON. D. C.

Patented Jan. 9, 1912.

FRANZ ZWINZ, OF VIENNA, AUSTRIA-HUNGARY.

WINDING APPARATUS FOR PAPER, CLOTH, OR THE LIKE.

Specification of Letters Patent.

Application filed. August 6, 1910.

Patented Jan. 9, 1912.

Serial No. 575,926.

operation of the material fed has reached a certain length, and toautomatically stop the winding operation when the paper has been woundto a predetermined size.

The principal features of the apparatus will more clearly appear from adescription thereof in connection with a paper smoothing machine whereinthe paper on being fed thereto from a paper roll is rendered smooth bymeans of ground stones drawn under pressure over the paper transverselyto the direction of its movement, after which the,

pa er is wound on to a roller.

s the feed movement of the paper, efiected by the drawing rollers isirregular and moreover is dependent on the throw or pressure applied tothe oscillating stone and further as the thickness of the paper, to beoperated on, varies, or in other words as the diameter of the windingroller owing to the paper layers placed upon itchanges constantly butnot in a uniform or calculable manner and it is at all times necessarythat no material pull should be exerted upon the paper in order toprevent its tearmg, it is not desirable to arrange a continuously drivenwinding roller. According to the present invention a member such as arod, roller or the like is provided which rests within and is entirelycarried and supported by the loop of the paper formed in the web in thefeed movement, this member being adapted to automatically throw thedriving gear of the winding roller into operation upon the loop reachinga determined slze, and throws it out of action when the loop has beenreduced to a determined smaller size.

A constructional form of the invention is shown in the drawing in whichFigure -1 is a front view of the winding device as used in a papersurfacing machine and Fig. 2 is a lateral elevation thereof.

The paper 1 to be surfaced is wound on a eally displaced by reason ofits being roll 2 whence it travels over drawing rollers 3 and 8*,beneath a tensioning rod 4:, over the smoothing bar 5, and beneath asecond tensioningrod 6, between drawing rolls 7 and 7 over guide rollers8, 9, to the loopcarried rod 10, and from thelatter to the windingroller 11. The roller 7 resting upon the roller 7, is capable of beingverti- -ournaled in a slotted bracket and the weight of the roller 7 isso chosen that when the smoothing stone 12, secured to a lever 13,presses upon the paper, the pressure exerted on the paper and on theroller 7 by the roller 7 a is not so great as to prevent a sliding ofthe roller 7 underneath the paper thereby Y avoiding any breakage of thelatter. These rollers can exert a pull on the paper and thereby eifectits advance only when the stone 12, which is moved transversely to thedirection of movement of the paper by means of the connecting rod 14:and crank wheel 16 continually driven by the main shaft 15, has left theedge of the paper so that the latter is relievedof the pressure of thestone.

. 7 Since theweight of the roller 7 as mentioned must not be great, apull would be immediately exerted upon the paper in the machlne duringthe operation of the winding roller 11, were it not for the provision ofthe device hereinafter described.

The shaft 19 of the roller 7 is operated from the main shaft 15 (Fig. 1)by means of a pulley gear 17, a toothed gear 18 and a worm gear '18.Mounted upon this shaft 19 is a pulley 20, driving a shaft 23 by meansof a belt 21, and a second pulley 22. Arranged on this shaft 23 on bothsides and symmetrically to the central axis of the machine are cams 2 1,which thus are constantly rotated from the main shaft of the machine.

Arranged at each side of the paper web is a device hereinafter morefully explained.

Pivoted upon an axis 27 on a-lateral standard 25 is a lever 26 of whichone end extends into the path of the cam 2 1 and whose other endprojects beyond the loop-carried rod 10, which at both sides is guidedin guide grooves 28, arranged in the standard 25. In the example shownthis guide groove is loop-shaped, a central web 29 being pro-- vided bywhich the rod 10 is compelled to rise along one side of the web, and todescend along its other side. Journaled in the standard 25 is a bellcrank lever 80, of which one arm 31 presses against the underside of aslide 34, by means of a tension spring 33 one end of which is secured tothe second lever arm 32, and the other end of which is attached to thestandard 25. The slide 34 projects with one end beyond the path of theloop-forming rod 10, and is provided with a slot 35 for guiding a pin 36of a crank 38 keyed on the shaft 37. A spring 39 tends to draw the slide34, in the event of its being displaced, constantly to the positionshown.

Keyed on the shaft 37 is an arm 40, the free rectangularly bent endofwhich is provided with a conically shaped roller 41. Opposite thisroller 41 and movably arranged on the shaft 19 is a coupling member 42,provided with a spring actuated coupling pin 43, which enterscorresponding openings in a pulley 44, loosely arranged on the shaft 19,when the coupling member 42 is displaced on the shaft 19 in oppositionto the action of a spring 45. This pulley 44 (Fig. 1) and a pulley 46arranged on the shaft 47 of the winding roller 11 are connected by abelt 45, by which the movement of the shaft 19 is transmitted to thewinding roller 11 upon the part 42 and pulley 44 being coupled.

Rotatably pivoted in the upper portion of the standard 25 (Fig. 2) is alever 48, of which one arm projects across the guide groove 28, whoseother arm 50, provided with a pin 49, is connected to the bell cranklever 30, by the pin 49 engaging with a slot 51 in the arm 32 of thelever 30.

The operation of the device is as follows: Assuming the loop-forming rod10 to have been brought into the position shown by the advance of thepaper effected by the drawing rollers 7 and 7 in which position thepaper is to be Wound on the winding roller 11, the levers 26 areoscillated by the continually driven cams 24, and in this movementraise, by means of their forward arms 27, the rod 10, into the portion28 of the guide groove 28. The rod 10 in ascending presses the slide 34which extends into its path back against the action of the spring 39,whereby the crank 38 owing to its connection with the slide 34, by thepin 36, is rocked in clockwise direction. The slide 34 is pressed backby the rod 10 to such an extent that the arm 31 of the bell crank lever30 by the action of the spring 33 is raised so as to bear against thebent end 34, on the slide, thereby locking the slide in its retractedposition. By the rocking of the crank 38 the shaft 37, and consequentlythe arm 40, are likewise rocked. In this movement the roller 41 is movedagainst the center of the conically tapering coupling member 42, whichis thereby displaced along the shaft 19, thus causing the pin 43 tocouple the pulley 44 with the member 42, so that the movement of thecontinually driven shaft 19 is transmitted to the winding roller 11. Thewinding roller thus rotated exerts a pull upon the paper, and, with thepaper, raises the rod 10 up to the end of the guide portion 28. At themoment in which the rod 10 has arrived at the upper end of the guide 28,and thepaper under treatment has thus been wound on to a sufficientextent, the rod 10 presses against one arm of the lever 48 which isthereby rocked, and, owing to its pin connection with the arm 32, rocksthe bell crank lever 30 in such a manner that its arm 31 is caused to bedrawn away from the edge 34 on the slide 34. This slide, thus freed, isshot forward, by the action of its spring 39, to its initial position,carrying with it the crank 38, whose pin 36 engages in the slot 35,whereby the crank 38 is rocked back again. In this movement the arm 40is likewise brought back to its initial position, that is to say thepressure exerted by it upon the coupling member 42 is relieved and thecoupling member 42 returns to its initial position, under the influenceof the spring 45, thus bringing about the uncoupling of the pul ley 44,which, as already mentioned, is loose on the shaft 19. The driving ofthe wind- 7 ing roller 11 is thus stopped at the same moment in whichthe rod 10 has arrived at the end of its upward movement. The drawingrollers 7 and 7 now again continue to feed the paper, and the rod 10,which, as before, is carried in a loop of the paper, now descends intothe portion 28" of the guide 28, until it enters the path of the rockinglever 26. At this moment the winding on of the paper must again takeplace as the advanced paper has reached a sufficient length. Thiswinding on operation is efiected by the raising of the rod 10 by meansof the lever 26, and by the windingdevice, which has thereby been throwninto operation. During the operation of the winding roller 11 thereforeno material pull of any kind can be exerted upon the paper present inthe machine and consequently any risk of tearing the paper is avoided.

As already mentioned the operating mechanism for the coupling isarranged at each end of the loop-carried rod 10. It is however clearthat it would suflice, to pro:

vide only one such mechanism. The arrangement of two congruent devicesof this kind which are positively connected has the advantage that inthe case of an accident, such as during an oblique position of the paperand the rod due to irregular feed movement, in which the loop-carriedrod may be caused to so perform its movement that its one end lies inthe guide port-ion28" and the other in the guide portion 28', a

completely correct operation of the device is nevertheless insured. Inthis case that end of the loop-carried rod which first arrives at thelower end of the guide would be seized by the corresponding lever 26 andeffect the throwing into action of the winding device and the oppositesymmetrically arranged mechanism would be rendered operative by thepositive connection.

What I claim and desire to secure by Letters Patent is t 1. In windingapparatus for paper, cloth and the like, in combination, a windingroller, a shaft therefor, a pulley keyed on said shaft and connected bya belt with a loosely arranged pulley on a positively driven main shaft,mechanism for throwing the loosely arranged pulley in and out of action,a rod carried and supported by a loop of the paper formed in the paperweb in the feed movement, a standard provided with guide grooves forsaid rod, and means for raising the rod to a certain height in saidguide grooves for enabling the rod to actuate said mechanism.

2. In winding apparatus for paper, cloth and the like, in combination, awinding roller, a shaft therefor, a pulley keyed on said shaft andconnected by a belt with a loosely arranged pulley on a positivelydriven main shaft, mechanism comprising a clutch for throwing thedriving means in and out of action, a rod carried by a loop of the paperformed in the paper web in the feed movement, a continually driven cam,a rocking lever pivoted in the standardand extending into the lower partof the path of the rod and adapted to raise the rod on its upwardmovement for enabling the latter to actuate said mechanism.

3. In winding apparatus for paper, cloth and the like, in combination, awinding roller, a shaft therefor, a pulley keyed on said shaft andconnected by a belt with a loosely arranged pulley on a positivelydriven main shaft, a conical tapering coupling member slidably mountedon said main shaft, a rod carried by a loop of the paper formed in thepaper web in the feed movement, a continually driven cam, a rockinglever pivoted in the standard, and extending into the lower part of thepath of the rod and adapted to raise the rod on its upward movement, aspring actuated slide extending normally into the path of the rod andpressed back by the rod, a crank connected with one end to the slide bymeans of a pin engaging a slot in the slide and keyed with the other endon an axis, an arm fixed thereto and having on its free end a conicalroller pressing against the center of said conically tapering couplingmember and having a sprin actuated coupling pin engaging a hole 0 theloosely mounted pulley when moved against it by the rocking of the armand crank by means of the slide being pressed back thereby coupling thepositively driven main shaft with the shaft of the winding roller, meansfor retaining the slide in its back position and means actuated by therod for throwing the driving mechanism of the winding roller out ofaction.

4. In winding apparatus for paper, cloth and the like, in combination, awinding roller, a shaft therefor, a pulley keyed on said shaft andconnected by a belt with a loosely arranged pulley on a positivelydriven main shaft, a conical tapering coupling member slidably mountedon said main shaft, a rod carried by a loop of the paper formed in thepaper web in the feed movement, a continually driven cam, a rockinglever pivoted in the standard and extending into the lower part of thepath of the rod and adapted to raise the rod on its upward movement, aspring actuated slide extending normally into the path of the rod andpressedback by the rod, a crank connected with one end to the slide bymeans of a pin engagingaslot in the slide and keyed with the other endon an axis, an arm fixed thereto and having on its free end a conicalroller pressing against the center of said conically tapering couplingmember and. having a spring actuated coupling pin engaging a hole of theloosely mounted pulley when moved against it by the rocking of the armand crank by means of the slide being pressed back thereby coupling thepositively driven main shaft with the shaft of the winding roller, abell crank lever journaled in the standard, a contractile springconnected to one arm of said lever and to said standard, said springconstantly pressing the other arm of said lever against said slide tolock the latter in position, a lever journaled in said standard, saidlever having one of its ends in the path of the rod as it descends andhaving its other end operatively connected to said bell crank lever torock same against the action of said contractile spring, whereby as therod rises it will engage said lever to cause said bell crank lever tomove out of engagement with said slide, thereby unlocking the latter andallowing it to return to its original position to uncouple the drivingmechanism of the winding roller.

In testimony whereof I have aiiixed my signature in presence of twowitnesses.

FRANZ ZWINZ.

Witnesses:

J OHANN Lox, AUGUST FUGGER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. 0.

